Prince William And Catherine, Duchess of Cambridge Cheer At London 2012 Paralympic Games

LONDON, ENGLAND - AUGUST 30: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge share a joke as they clap whilst watching the track cycling on day 1 of the London 2012 Paralympic Games at the Velodrome on August 30, 2012 in London, England. (Photo by Chris Jackson/Getty Images)